diff options
Diffstat (limited to 'board/phytec/pcm058')
| -rw-r--r-- | board/phytec/pcm058/MAINTAINERS | 3 | ||||
| -rw-r--r-- | board/phytec/pcm058/README | 51 | ||||
| -rw-r--r-- | board/phytec/pcm058/pcm058.c | 325 |
3 files changed, 73 insertions, 306 deletions
diff --git a/board/phytec/pcm058/MAINTAINERS b/board/phytec/pcm058/MAINTAINERS index b0ca40277f0..909dfc44af0 100644 --- a/board/phytec/pcm058/MAINTAINERS +++ b/board/phytec/pcm058/MAINTAINERS @@ -1,6 +1,7 @@ PHYTEC PHYBOARD MIRA -M: Stefano Babic <sbabic@denx.de> +M: Niel Fourie <lusus@denx.de> S: Maintained F: board/phytec/pcm058/ F: include/configs/pcm058.h F: configs/pcm058_defconfig +F: arch/arm/dts/imx6q-phytec-mira-rdk-nand-u-boot.dtsi diff --git a/board/phytec/pcm058/README b/board/phytec/pcm058/README index 33271356451..02be0994fcd 100644 --- a/board/phytec/pcm058/README +++ b/board/phytec/pcm058/README @@ -33,3 +33,54 @@ is present, then the RBL tries to load SPL from the SD Card, if not, RBL loads from SPI-NOR. The SPL tries then to load from the same device where SPL was loaded (SD or SPI). Booting from NAND is not supported. + +Flashing U-Boot onto an SD card +------------------------------- + +After a successful build, the generated SPL and U-boot binaries can be copied +to an SD card. Adjust the SD card device as necessary: + +$ sudo dd if=u-boot-with-spl.imx of=/dev/mmcblk0 bs=1k seek=1 + +This is equivalent to separately copying the SPL and U-boot using: + +$ sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1 +$ sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=197 + +The default bootscripts expect a kernel fit-image file named "fitImage" in the +first partition and Linux ext4 rootfs in the second partition. + +Flashing U-boot to the SPI Flash, for booting Linux from NAND +------------------------------------------------------------- + +The SD card created above can also be used to install the SPL and U-boot into +the SPI flash. Boot U-boot from the SD card as above, and stop at the autoboot. + +Then, clear the SPI flash: + +=> sf probe +=> sf erase 0x0 0x1000000 + +Load the SPL from raw MMC into memory and copy to the SPI. The SPL is maximum +392*512-byte blocks in size therefore 0x188 blocks, totaling 0x31000 bytes: + +=> mmc read ${loadaddr} 0x2 0x188 +=> sf write ${loadaddr} 0x400 0x31000 + +Load the U-boot binary into memory and copy to the SPI. U-boot should fit into +640KiB, so 0x500 512-byte blocks, totalling 0xA0000 bytes: + +=> mmc read ${loadaddr} 0x18a 0x500 +=> sf write ${loadaddr} 0x40000 0xA0000 + +The default NAND bootscripts expect a single MTD partition named "rootfs", +which in turn contains the UBI volumes "fit" (which contains the kernel fit- +image) and "root" (which contains a ubifs root filesystem). + +The "bootm_size" variable in the environment +-------------------------------------------- + +By default, U-boot relocates the device tree towards the upper end of the RAM, +which kernels using CONFIG_HIGHMEM=y may not be able to access during early +boot. With the bootm_size variable set to 0x30000000, U-boot relocates the +device tree to below this address instead. diff --git a/board/phytec/pcm058/pcm058.c b/board/phytec/pcm058/pcm058.c index 096425c5dfe..79c666588f4 100644 --- a/board/phytec/pcm058/pcm058.c +++ b/board/phytec/pcm058/pcm058.c @@ -12,60 +12,14 @@ #include <common.h> #include <init.h> #include <net.h> -#include <asm/io.h> -#include <asm/arch/clock.h> -#include <asm/arch/imx-regs.h> #include <asm/arch/crm_regs.h> #include <asm/arch/mx6-ddr.h> -#include <asm/arch/iomux.h> -#include <asm/arch/mx6-pins.h> -#include <asm/mach-imx/iomux-v3.h> #include <asm/mach-imx/boot_mode.h> -#include <asm/mach-imx/mxc_i2c.h> -#include <asm/mach-imx/spi.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <asm/gpio.h> -#include <mmc.h> -#include <i2c.h> -#include <fsl_esdhc_imx.h> -#include <nand.h> -#include <miiphy.h> -#include <netdev.h> #include <asm/arch/sys_proto.h> -#include <asm/sections.h> +#include <dm.h> DECLARE_GLOBAL_DATA_PTR; -#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ - PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ - PAD_CTL_SRE_FAST | PAD_CTL_HYS) - -#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ - PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ - PAD_CTL_SRE_FAST | PAD_CTL_HYS) - -#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ - PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) - -#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \ - PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) - -#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ - PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ - PAD_CTL_ODE | PAD_CTL_SRE_FAST) - -#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL) - -#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \ - PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) - -#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ - PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) - -#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14) -#define USDHC1_CD_GPIO IMX_GPIO_NR(6, 31) -#define USER_LED IMX_GPIO_NR(1, 4) #define IMX6Q_DRIVE_STRENGTH 0x30 int dram_init(void) @@ -74,229 +28,16 @@ int dram_init(void) return 0; } -void board_turn_off_led(void) -{ - gpio_direction_output(USER_LED, 0); -} - -static iomux_v3_cfg_t const uart1_pads[] = { - MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), - MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), -}; - -static iomux_v3_cfg_t const enet_pads[] = { - MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), - MX6_PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL), -}; - -static iomux_v3_cfg_t const ecspi1_pads[] = { - MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), - MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), - MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), - MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL), -}; - -#ifdef CONFIG_CMD_NAND -/* NAND */ -static iomux_v3_cfg_t const nfc_pads[] = { - MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL), - MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL), -}; -#endif - -static struct i2c_pads_info i2c_pad_info2 = { - .scl = { - .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD, - .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD, - .gp = IMX_GPIO_NR(1, 5) - }, - .sda = { - .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD, - .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD, - .gp = IMX_GPIO_NR(1, 6) - } -}; - -static struct fsl_esdhc_cfg usdhc_cfg[] = { - {.esdhc_base = USDHC1_BASE_ADDR, - .max_bus_width = 4}, -#ifndef CONFIG_CMD_NAND - {USDHC4_BASE_ADDR}, -#endif -}; - -static iomux_v3_cfg_t const usdhc1_pads[] = { - MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ -}; - -#if !defined(CONFIG_CMD_NAND) && !defined(CONFIG_SPL_BUILD) -static iomux_v3_cfg_t const usdhc4_pads[] = { - MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), -}; -#endif - int board_mmc_get_env_dev(int devno) { return devno - 1; } -int board_mmc_getcd(struct mmc *mmc) -{ - struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; - int ret = 0; - - switch (cfg->esdhc_base) { - case USDHC1_BASE_ADDR: - ret = !gpio_get_value(USDHC1_CD_GPIO); - break; - case USDHC4_BASE_ADDR: - ret = 1; /* eMMC/uSDHC4 is always present */ - break; - } - - return ret; -} - -int board_mmc_init(bd_t *bis) -{ -#ifndef CONFIG_SPL_BUILD - int ret; - int i; - - for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { - switch (i) { - case 0: - imx_iomux_v3_setup_multiple_pads( - usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); - gpio_direction_input(USDHC1_CD_GPIO); - usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); - break; -#ifndef CONFIG_CMD_NAND - case 1: - imx_iomux_v3_setup_multiple_pads( - usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); - usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); - break; -#endif - default: - printf("Warning: you configured more USDHC controllers" - "(%d) then supported by the board (%d)\n", - i + 1, CONFIG_SYS_FSL_USDHC_NUM); - return -EINVAL; - } - - ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]); - if (ret) - return ret; - } - - return 0; -#else - struct src *psrc = (struct src *)SRC_BASE_ADDR; - unsigned reg = readl(&psrc->sbmr1) >> 11; - /* - * Upon reading BOOT_CFG register the following map is done: - * Bit 11 and 12 of BOOT_CFG register can determine the current - * mmc port - * 0x1 SD1 - * 0x2 SD2 - * 0x3 SD4 - */ - - switch (reg & 0x3) { - case 0x0: - imx_iomux_v3_setup_multiple_pads( - usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); - gpio_direction_input(USDHC1_CD_GPIO); - usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR; - usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); - usdhc_cfg[0].max_bus_width = 4; - gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk; - break; - } - return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); -#endif -} - -static void setup_iomux_uart(void) -{ - imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); -} - -static void setup_iomux_enet(void) -{ - imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); - - gpio_direction_output(ENET_PHY_RESET_GPIO, 0); - mdelay(10); - gpio_set_value(ENET_PHY_RESET_GPIO, 1); - mdelay(30); -} - -static void setup_spi(void) -{ - gpio_request(IMX_GPIO_NR(3, 19), "spi_cs0"); - gpio_direction_output(IMX_GPIO_NR(3, 19), 1); - - imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); - - enable_spi_clk(true, 0); -} - #ifdef CONFIG_CMD_NAND static void setup_gpmi_nand(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; - /* config gpmi nand iomux */ - imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads)); - /* gate ENFC_CLK_ROOT clock first,before clk source switch */ clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK); @@ -325,48 +66,17 @@ static void setup_gpmi_nand(void) } #endif -int board_spi_cs_gpio(unsigned bus, unsigned cs) -{ - if (bus != 0 || (cs != 0)) - return -EINVAL; - - return IMX_GPIO_NR(3, 19); -} - -int board_eth_init(bd_t *bis) -{ - setup_iomux_enet(); - - return cpu_eth_init(bis); -} - -int board_early_init_f(void) -{ - setup_iomux_uart(); - - return 0; -} - int board_init(void) { /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; -#ifdef CONFIG_SYS_I2C_MXC - setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); -#endif - -#ifdef CONFIG_MXC_SPI - setup_spi(); -#endif - #ifdef CONFIG_CMD_NAND setup_gpmi_nand(); #endif return 0; } - #ifdef CONFIG_CMD_BMODE /* * BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4 @@ -535,11 +245,6 @@ void board_boot_order(u32 *spl_boot_list) void board_init_f(ulong dummy) { -#ifdef CONFIG_CMD_NAND - /* Enable NAND */ - setup_gpmi_nand(); -#endif - /* setup clock gating */ ccgr_init(); @@ -549,23 +254,33 @@ void board_init_f(ulong dummy) /* setup AXI */ gpr_init(); - board_early_init_f(); - /* setup GP timer */ timer_init(); - setup_spi(); - - /* UART clocks enabled and gd valid - init serial console */ - preloader_console_init(); - /* DDR initialization */ spl_dram_init(); /* Clear the BSS. */ memset(__bss_start, 0, __bss_end - __bss_start); - /* load/boot image from boot device */ - board_init_r(NULL, 0); + /* Enable device tree and early DM support*/ + spl_early_init(); + + /* UART clocks enabled and gd valid - init serial console */ + preloader_console_init(); +} + +/* + * Manually probe the SPI bus devices, as this does not happen when the + * SPI Flash is probed, which then fails to find the bus. + */ +void spl_board_init(void) +{ + struct udevice *udev; + int ret = uclass_get_device_by_name(UCLASS_SPI, "spi@2008000", &udev); + + if (ret) { + printf("SPI bus probe failed, err = %d\n", ret); + }; } #endif |